Window-lock.



PATBNTED DEC. 22,1903.

` E. POSTER.

- WINDOW LocK. APrLIU'rIoN ILBD SEPT; 19. 1903 www@ . window-frame.

other.

UNITED STATES Patented December 22, 1903.

EDITH FOSTER, OF CHICAGO, ILLINOIS.

WINDOW-LOCK.

SPECIFICATION forming part 0f Letters Patent No. 747,403, dated December22, 1903.

Application led September 19, 1903. Serial No. 173,788'. (No model.) l

To all whom it may concern,.-

Beit known that I, EDITH FOSTER, a citizen of the United States,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Window-Locks, of whichthe following is a specification.

This invention relatesmcre particularly to `means for locking thewindow-sashes in position both relatively to each other and to the Itsobjects are to provide a device of simple character which will eicientlylock both of the window-slashes in any desired position relatively toeach other and will simultaneously lockeaoh-sash in position relativeto. the window-frame.

It consists in the novel features and details' of construction whichwill be pointed out more specifically hereinafter and as shown in theaccompanying drawings, in which- Figure l is an elevation showing theinner portion of a'window provided with a sash-lock embodyingthisinvention,sashes being shown in partially-open position. Fig. 2 is aview showing the sashes and the lock in side elevation. Fig. 3 is anenlarged detail of a lock-l ing-bolt. Fig. 4 is an enlarged detailshowing a portion of the locking-strip with the head ofthe-locking-boltin engagement therewith.

As shown in the drawings, A represents a window-frame which is providedwith sashes B and C. A bracket D is rigidly secured to the top rail b ofthe upper sash B. Pivoted to this bracket is a depending locking-stip E,which is provided with a series of indentations e onthe edge toward thewindow, which are adapted to engage with the top rail o of the lowersash C. It will be noted that when this strip is swung down so that theindentations engage with the top rail c the two sashes will be locked inposition relatively to each However, it is desirable to further hold thestrip E in position and also to lock the sashes in position relativelyto the frame A. I provide a locking-bolt F for this purpose, which isheld in asuitable socket g in a bracket G, which is secured to theframe, as shown in Fig. l. This bolt is provided with an oval-shapedhead f, which is adapted to pass through the oval holes e in the strip Eand when lthe bolt F is turned by means of the knob f' to securely holdand lock the strip E -change the position of either one or both of thesashes, the bolt F is thrown out of engagement with the strip E. Thelatter is then swung out at the bottom so that either sash may be freelymoved. When the sashes have been broughtto the desired position,thelower end of the strip E is pressed toward the window and an indentationbrought intoengagement with the rail c of the lower sash. This brings ahole e' opposite the end of the bolt F. The bolt is then shot into.position and the knob f turned down so that the head f locks the stripE in position. l

- It will be noted that changes in the details lof construction willreadily suggest themselves as coming within the scope of this invention,and I do not wish to limit myself to the exact forms herein shown anddecribed; but

What- I claim, and desire to secure by Letters Patent, is-

l. In a window-lock, the combination with a window-sash, of a bracketsecured to said sash, a locking-strip pivoted to said bracket and havingindentations adapted to engage with the rail of a corresponding sash,and a locking-bolt secured to the frame and adapted to engage with saidstrip and to lock said strip in positive engagement with the rail and inpositive position relative to the frame.

2. In a window-lock, the combination with an upper sash, of a bracketsecured to the top rail thereof, a locking-strip pivoted to said bracketand provided with indentations adapted to engage with the top rail ofthe lower sash, a bracket secured to the windowframe,'and a bolt in saidbracket provided with an oval head adapted to engage with oval holes insaid locking-strip, whereby the latter may be locked in any desiredposition.

EDITH FOSTER.

Witnesses:

E. HARNOLD, JAMES B. FOSTER, MARGARET McCLosKEY.

